Replacing pre-facelift with facelift bumper.

i recently bought a 1.8 2013 insignia as my first car not realising the difference between facelift and pre-facelift. Mine is a pre-facelift model unfortunately and was wondering if it was actually possible to upgrade to the facelift bumper.

I have researched around the internet and the closest thing i could find was a thread on this website stating that it is/should be possible. Does anyone know where i can find instructions/ a guide or something that would help me complete this? Does anyone know how to do it themselves?
Also if anyone knows the actual parts i would need i would appreciate them too. Thanks.

As for parts you need, bumper, grille, headlights. Not sure about bonnet and wings. Also I think you may gut have to change the wiring on the headlights as I believe this is different to the pre-facelift. Hope this helps.